cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A129684 Exponential Riordan array [1/(1-x^2/2), x].

Table of values

n a(n)
0 1
1 0
2 1
3 1
4 0
5 1
6 0
7 3
8 0
9 1
10 6
11 0
12 6
13 0
14 1
15 0
16 30
17 0
18 10
19 0
20 1
21 90
22 0
23 90
24 0
25 15
26 0
27 1
28 0
29 630
30 0
31 210
32 0
33 21
34 0
35 1
36 2520
37 0
38 2520
39 0
40 420
41 0
42 28
43 0
44 1
45 0
46 22680
47 0
48 7560
49 0
50 756
51 0
52 36
53 0
54 1
55 113400
56 0
57 113400
58 0
59 18900
60 0
61 1260
62 0
63 45
64 0
65 1

List of values

[1, 0, 1, 1, 0, 1, 0, 3, 0, 1, 6, 0, 6, 0, 1, 0, 30, 0, 10, 0, 1, 90, 0, 90, 0, 15, 0, 1, 0, 630, 0, 210, 0, 21, 0, 1, 2520, 0, 2520, 0, 420, 0, 28, 0, 1, 0, 22680, 0, 7560, 0, 756, 0, 36, 0, 1, 113400, 0, 113400, 0, 18900, 0, 1260, 0, 45, 0, 1]